Results 51 to 60 of about 3,008 (160)

Lid wiper epitheliopathy: an early sign of dry eye diagnosis

open access: yesFrontiers in Medicine
ObjectivesThe purpose of this study was to investigate the relationship between the severity of lid wiper epitheliopathy (LWE) and ocular surface features and evaluate the potential of LWE as an early diagnosis indicator of dry eye.MethodsEighty-eight ...
Yuan Gao   +4 more
doaj   +1 more source

On the concrete hardness of Learning with Errors

open access: yesJournal of Mathematical Cryptology, 2015
The learning with errors (LWE) problem has become a central building block of modern cryptographic constructions. This work collects and presents hardness results for concrete instances of LWE.
Albrecht Martin R.   +2 more
doaj   +1 more source

LRSPPP: lightweight R-LWE-based secure and privacy-preserving scheme for prosumer side network in smart grid

open access: yes, 2019
In recent years, researchers have made tremendous progress to address an important question of how to provide security and privacy in Internet of Things systems.
Aarti Amod Agarkar (19129525)   +1 more
core   +1 more source

Quantum Key Search for Ternary LWE [PDF]

open access: yes, 2021
Ternary LWE, i.e., LWE with coefficients of the secret and the error vectors taken from $\{-1, 0, 1\}$, is a popular choice among NTRU-type cryptosystems and some signatures schemes like BLISS and GLP.
Alexander May   +2 more
core  

Ring-LWE in Polynomial Rings [PDF]

open access: yes, 2012
The Ring-LWE problem, introduced by Lyubashevsky, Peikert, and Regev (Eurocrypt 2010), has been steadily finding many uses in numerous cryptographic applications. Still, the Ring-LWE problem defined in [LPR10] involves the fractional ideal R ∨, the dual of the ring R , which is the source of many theoretical and implementation technicalities. Until now,
Ducas, Léo, Durmus, Alain
openaire   +3 more sources

Key-private proxy re-encryption under LWE

open access: yes, 2013
Proxy re-encryption (PRE) is a highly useful cryptographic primitive whereby Alice and Bob can endow a proxy with the capacity to change ciphertext recipients from Alice to Bob, without the proxy itself being able to decrypt, thereby providing delegation
Le Trieu Phong   +7 more
core   +1 more source

Efficient Homomorphic Conversion Between (Ring) LWE Ciphertexts [PDF]

open access: yes, 2020
© 2021, Springer Nature Switzerland AG.In the past few years, significant progress on homomorphic encryption (HE) has been made toward both theory and practice.
Kim, Miran   +8 more
core   +1 more source

Diagnostic Accuracy of Abdominal wall Ultrasonography and Local Wound Exploration in Predicting the Need for Laparotomy following Stab Wound

open access: yesEmergency, 2016
Introduction: Screening of patients with anterior abdominal penetrating trauma in need for laparotomy is an important issue in management of these cases.
Ali Vafaei   +3 more
doaj   +3 more sources

Packed Ciphertexts in LWE-Based Homomorphic Encryption [PDF]

open access: yes, 2012
In this short note we observe that the Peikert-Vaikuntanathan-Waters (PVW) method of packing many plaintext elements in a single Regev-type ciphertext, can be used for performing SIMD homomorphic operations on packed ciphertext.
Zvika Brakerski   +2 more
core   +1 more source

Compact Ring-LWE Cryptoprocessor [PDF]

open access: yes, 2014
In this paper we propose an efficient and compact processor for a ring-LWE based encryption scheme. We present three optimizations for the Number Theoretic Transform NTT used for polynomial multiplication: we avoid pre-processing in the negative wrapped convolution by merging it with the main algorithm, we reduce the fixed computation cost of the ...
Sinha Roy, Sujoy   +4 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy